Briquettes of lignocellulosic residues as a potential energetic source for burning ceramic blocks: application in an industry of red ceramic that supplies Distrito Federal / Briquetes de resíduos ligno-celulósicos como potencial energético para a queima de blocos cerâmicos : aplicação em uma indústria de cerâmica vermelha que a bastece o Distrito Federal

Dirceu Medeiros de Morais

Red ceramic industry in the civil construction productive network is one of the industries that more consumes energy, especially in its burning products stage. In some cases, as in Distrito Federal and the state of Goiás, the areas considered in this work, the most consumed fuel by the industries was the native firewood. Is spite of that, according to Associação Brasileira de Cerâmica, this industrial segment represents, as yet, a relevant role to the national economy, by engendering thousands of jobs and lots of resources. As for its environmental sustainability, its clear that the energetic aspects need more researches, like the development and application of alternative sources of energy. Due to the firewood shortage to burn the blocks, the use of forest and agricultural residues is increasing each day. This research has as main objective to study the technical, energetic and economic viability of briquettes, lignocellulosic residues constituted of wood sawdust and peel of cotton seed, used in an industry of ceramic blocks that supplies Brasília industry, using as comparative referential the eucalyptus firewood. The methodology used is, once selected the briquette and its characterization, the analysis of its application using the ceramic blocks burning stage and the efficiency evaluation of the blocks burned in this fuel. The results indicates that the consumption in the burning with briquettes was lower than using eucalyptus firewood; however, the second one was more viable economically.

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